- Subjects with adequate physical function as measured by:a)Cardiac: Left ventricular ejection fraction at rest must be >35%, or shortening fraction > 25%. b)Hepatic: Bilirubin < 2.5 mg/dL; and ALT, AST, and Alkaline Phosphatase < 5 x ULN. c)Renal: Serum creatinine within normal range for age, or creatinine clearance or GFR > 40 mL/min/1.73m2. d)Pulmonary: FEV 1, FVC, DLCO (diffusion capacity) > 50% predicted (corrected for hemoglobin); or 02 saturation > 92% on room air.